Počet záznamů: 1
Mass spectrometry of graphene oxide thermal reduction in vacuum
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SYSNO ASEP 0572928 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Mass spectrometry of graphene oxide thermal reduction in vacuum Tvůrce(i) Torrisi, L. (IT)
Silipigni, L. (IT)
Cutroneo, Mariapompea (UJF-V) ORCID, RID, SAI
Torrisi, A. (IT)Celkový počet autorů 4 Zdroj.dok. Radiation Effects and Defects in Solids. - : Taylor & Francis - ISSN 1042-0150
Roč. 178, 1-2 (2023), s. 28-39Poč.str. 12 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova graphene ; graphene oxide reduction ; degassing ; thermal treatment ; FTIR ; EDX Obor OECD Nuclear physics Způsob publikování Omezený přístup Institucionální podpora UJF-V - RVO:61389005 UT WOS 000983063100004 EID SCOPUS 85159021625 DOI 10.1080/10420150.2023.2186867 Anotace Foils of graphene oxide (GO) prepared by micrometric graphene oxide platelets dispersed in water at low concentrations were physically investigated during their thermal reduction in a vacuum. The water, the carbon dioxide and the functional groups of oxygen, degassed during the thermal treatment, were monitored for the first time with a quadrupole mass spectrometer as a function of the foil temperature. Fourier transform infrared (FTIR) spectroscopy and energy dispersive X-rays (EDX) analyses were also presented to confirm the modality of reduction in vacuum. The thermal reduction process increases the C/O atomic ratio from the pristine value of about 2.0 to about 4.5 using a temperature of about 200 degrees C. The reduced graphene oxide (rGO), depleted of water and some functional oxygen groups, shows a more compact structure with an increment of the density from the pristine value of about 1.36 g/cm(3) to about 1.9 g/cm(3), which determines a decreasing of the distance between the graphene layers. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2024 Elektronická adresa https://doi.org/10.1080/10420150.2023.2186867
Počet záznamů: 1